36681789 has 4 divisors (see below), whose sum is σ = 48909056. Its totient is φ = 24454524.

The previous prime is 36681779. The next prime is 36681793. The reversal of 36681789 is 98718663.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 36681789 - 2¹³ = 36673597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36681719) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6113629 + ... + 6113634.

It is an arithmetic number, because the mean of its divisors is an integer number (12227264).

Almost surely, 2^36681789 is an apocalyptic number.

It is an amenable number.

36681789 is a deficient number, since it is larger than the sum of its proper divisors (12227267).

36681789 is a wasteful number, since it uses less digits than its factorization.

36681789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12227266.

The product of its digits is 435456, while the sum is 48.

The square root of 36681789 is about 6056.5492650518. The cubic root of 36681789 is about 332.2641635165.

The spelling of 36681789 in words is "thirty-six million, six hundred eighty-one thousand, seven hundred eighty-nine".